Graco Bulldog Hydra-Cat Series Datenblatt

Instructions – Parts List

BULLDOG HYDRA–CATRFIXED RATIO

Proportioning Pumps

3000 psi (21 MPa, 207 bar) Maximum Working Pressure

Two or Three Displacement Pump Models

in Various Mix Ratios, Pressure Ratios

and Flow Volume

Available as Bare Pumps,

Wall-Mounted* or Free-Standing* Models

*Includes Mixing Manifolds, Automatic Pressure Relief Valves,

Check Valves, Pressure Gauges and Regulators

Table of Contents

Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model Charts 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Installations 7, 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation – Optional Fluid Heaters 13. . . . . . . . . . . . . . . . . . . . . . .

Installation – Optional Solvent Pump 15. . . . . . . . . . . . . . . . . . . . . .

Flushing 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown and Care of the System 23. . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service – Displacement Pump 26. . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

308225K

Read warnings and instructions.

For a list of models, see page 6.

02910A

3082252

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious

injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

instructions.

WARNING

INJECTION HAZARD

Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause

extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin

can also cause serious injury.

DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-

cal attention.

DDo not point the spray gun at anyone or at any part of the body.

DDo not put your hand or fingers over the spray tip/nozzle.

DDo not stop or deflect leaks with your hand, body, glove or rag.

DDo not “blow back” fluid; this is not an air spray system.

DCheck the gun diffuser operation weekly. Refer to the gun manual.

DAlways have the trigger guard on the spray gun when spraying.

DCheck the gun diffuser operation weekly. Refer to the gun manual.

DBe sure the gun trigger safety operates before spraying.

DLock the gun trigger safety when you stop spraying.

DFollow the Pressure Relief Procedure on page 19 if the spray tip/nozzle clogs and whenever you:

are instructed to relieve pressure; stop spraying; clean, check, or service the equipment; and install

or clean the spray tip/nozzle.

DTighten all fluid connections before operating the equipment.

DCheck the hoses, tubes, and couplings daily. Do not mend or repair any part of the hose assembly.

If the hose is damaged, replace it immediately.

MOVING PARTS HAZARD

Moving parts, such as the air motor piston can pinch or amputate fingers.

DDo not operate the equipment with the air motor plates removed.

DKeep your body and tools clear of any moving parts when starting or operating the equipment.

308225 3

WARNING

FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD

Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and

result in fire, explosion, electric shock or other serious injury.

DGround the equipment and the object being sprayed. See Grounding on page 10.

DDo not use the heater with flammable liquids, such as those having flash points below 200_F

(93_C).

DAll electrical wiring must be done by trained and qualified personnel and comply with all local codes

and regulations.

DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and

correct the problem.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed.

DDo not smoke within the spray area.

DExtinguish all the open flames or pilot lights within the spray area.

DKeep the spray area free of debris, including solvent, rags, and gasoline.

DElectrically disconnect all the equipment within the spray area.

DDo not turn on or off any light switch within the spray area while operating or if fumes are present.

DDo not operate a gasoline engine within the spray area.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,

inhaled, or swallowed.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

DGraco does not manufacture or supply any of the reactive chemical components that may be used

in this equipment and is not responsible for their effects. Graco assumes no responsibility for loss,

damage, expense or claims for personal injury or property damage, direct or consequential, arising

from the use of such chemical components.

3082254

WARNING

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

DThis equipment is for professional use only.

DRead all instruction manuals, tags, and labels before operating the equipment.

DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco

distributor.

DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

DSee the chart on page 6 for important pressure rating information. The maximum working pres-

sure of each model is also shown on the pump identification plate. Be sure that all dispensing

equipment and accessories are rated to withstand the maximum working pressure of your pump.

Do not exceed the maximum working pressure of the lowest rated system component.

DNever operate the pump without the automatic pressure relief valves and drainage kits installed.

These valves relieve fluid pressure through a drain port at the bottom of the valve if the displace-

ment pump pressure exceeds the working pressure.

DDo not lift pressurized equipment.

DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose

from rupture caused by kinks or bends near the couplings.

DRoute the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not

expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).

DDo not use the hoses to pull the equipment.

DUse fluids and solvents that are compatible with the equipment wetted parts. See the Technical

Data section of all the equipment manuals. Read the fluid and solvent manufacturer’s warnings.

DComply with all applicable local, state and national fire, electrical and other safety regulations.

308225 5

Notes

head.notes

3082256

Model Charts

Pressure and Ratio Ratings for Bulldog Pumps

WARNING

COMPONENT RUPTURE HAZARD

To reduce the risk of over-pressurizing a component, which can result in an explosion and serious injury, never

operate the system at a working pressure higher than the lowest rated component in the system. All fluid side

components, such as dispensing valves; regulators; and hoses, must have a working pressure equal to or

greater than the pressure given in Column B for each pump model.

Column A gives the maximum pump fluid output pressure.

Column B gives the minimum working pressure required for all system components, based on the automatic relief

valve settings. Components included by Graco with the models listed meet or exceed this requirement.

Models with Two Displacement Pumps

Mix

Model No.

Maximum Pump

Fluid Output

Pressure*

At Maximum

Air Pressure

Of:

Minimum

Component

Working Pressure

Normal

Pressure

Ratio

(Fl id t Ai )

Nominal

Flow

Volume

@ 40 cpm

Mix

Ratio Bare Wall Stand psi MPa, bar psi MPa, bar psi MPA, bar (Fluid to Air) gpm lpm

1:1 231897 231836 231865 3000 21, 207 86 0.6, 6 3000 21, 207 34.7 1.8 6.8

Models with Three Displacement Pumps

Mix

Model No.

Maximum Pump

Fluid Output

Pressure*

At Maximum

Air Pressure

Minimum

Component

Working Pressure

Normal

Pressure

Ratio

(Fl id t Ai )

Nominal

Flow

Volume

@ 40 cpm

Ratio Bare Wall Stand psi MPA, bar psi MPa, bar psi MPA, bar (Fluid to Air) gpm lpm

2:1 231908 231847 231876 2320 16, 160 100 0.7, 7 2900 20, 200 23.2 2.7 10.1

2:1 231910 231849 231878 3000 21, 207 86 0.6, 6 3600 25, 248 34.7 1.8 6.7

3:1 231912 231851 231880 2610 18, 180 100 0.7, 7 2900 20, 200 26.1 2.4 8.9

4:1 231915 231854 231883 2780 19, 192 100 0.7, 7 2900 20, 200 27.8 2.2 8.4

308225 7

Typical Installation

About the Typical Installations

These pumps are designed to be part of a Hydra-Cat

dispensing system that will proportion, mix, and

dispense two-component fluids. The typical installa-

tions shown below and on page 8 are only guidelines

to setting up a complete proportioning system. For

clarity, various components are shown in the correct

order but may not be shown in the exact position of the

installed system. For assistance in designing your

system, contact your nearest Graco representative.

NOTE: When pressure feeding the proportioning

pump, mount fluid pressure gauges (J) at the propor-

tioning pump inlets to monitor proper adjustment of the

feed pump pressures. Never exceed 25% of the

Hydra-Cat pump outbound fluid pressure on the feed

supply.

Light Viscosity System

Two Displacement Pumps,

5:1 Ratio Feed Pumps

1See note above

Connect to drain bottle.

See Fig. 5, page 11

KEY

A Bleed-type master

air valve

B Air filter

C Air lubricator

D Pump runaway valve

E Pump air regulator

F Feed pump

G Ground wire

H Proportioning pump

J Fluid pressure gauge

K Check valve

L Automatic pressure relief

valve

M Fluid filter

N Mixer manifold

P Fluid drain valve

Q Fluid shutoff valve

R Static mixer

S Dispense valve

T Fluid regulator

U Solvent pump

V Fluid strainer

* Included with wall or stand models

Fig. 1

HK* L*

A*E*

02911

HARDENER RESIN

RES

HARD

RES

HARD

3082258

Typical Installation

About the Typical Installations

These pumps are designed to be part of a Hydra-Cat

dispensing system that will proportion, mix, and

dispense two-component fluids. The typical installation

iss shown below and on page 7 are only a guidelines

to setting up a complete proportioning system. For

clarity, various components are shown in the correct

order but may not be shown in the exact position of the

installed system. For assistance in designing your

system, contact your nearest Graco representative.

NOTE: When pressure feeding the proportioning

pump, mount fluid pressure gauges (J) at the propor-

tioning pump inlets to monitor proper adjustment of the

feed pump pressures. Never exceed 25% of the

Hydra-Cat pump outbound fluid pressure on the feed

supply.

Heavy Viscosity Heated System

Three Displacement Pumps,

10:1 Ratio Feed Pumps

See note above

Connect to drain bottle.

See Fig. 5, page 11

KEY

A Bleed-type master air valve

B Air filter

C Air lubricator

D Pump runaway valve

E Pump air regulator

F Feed pump

G Ground wire

H Proportioning pump

J Fluid pressure gauge

K Check valve

L Automatic pressure

relief valve

M Fluid filter

N Mixer manifold

P Fluid drain valve

Q Fluid shutoff valve

R Static mixer

S Dispense valve

T Fluid regulator

U Solvent pump

V Fluid strainer

W Fluid heater

X Supply manifold

* Included with wall or stand models

02912

Fig. 2

HJ* K* L* M

N**

P**

Q**

A*E*

308225 9

Installation

Bare Pumps

Bare pumps are available for those installations which

require a highly customized system. For a safe and

efficient system, Graco recommends that the air and

fluid components supplied with the Wall Mount and

Cart Mount models also be used in customized

systems. Refer to the Parts Drawings starting on page

28 for part numbers. In addition, the accessories

shown in the Typical Installation drawings and

discussed in the following pages of this manual should

be used.

Be sure all accessories are sized properly for the air

and fluid requirements of your system.

Read all instructions in the Installation section for

further details.

NOTES:

1. Models with three displacement pumps always use

the two outer displacement pumps to supply the

resin and the middle displacement pump to supply

the hardener.

2. Label all pumps, hoses, fluid regulators, etc. to

indicate whether they are for the resin side or

hardener side of the system.

Mounting the Pump

Mount the pump to suit your installation. The bare

pump can be mounted on a wall bracket or on a cart.

See Dimensions on page 43. The Bulldog pump and

accessories weigh approximately 115 lb (52 kg). The

pump stand and accessories weigh 55 lb (25 kg).

For a wall mount, be sure the bracket and wall are

strong enough to support the pump, accessories,

plumbing and stress caused by pump operation.

Locate the bracket about 5 ft (1.5 m) above the floor.

30822510

Installation

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding could cause static

sparking, which could cause a fire or

explosion. To reduce the risk of property

damage or serious injury, follow the

grounding instructions below.

The following grounding instructions are minimum

requirements for a system. Your system may include

other equipment or objects which must be grounded.

Check your local electrical code for detailed grounding

instructions for your area and type of equipment. Your

system must be connected to a true earth ground.

1. Pump:

a. Loosen the grounding lug locknut (BB) and

washer (AA).

b. Insert one end of a 14 ga. (1.5 mm@) minimum

ground wire (G) into the slot in lug (CC) and

tighten the locknut securely. See Fig. 3.

c. Connect the other end of the ground wire to a

true earth ground. Order part number 237569

grounding clamp wire.

Fig. 3

BB AA

2. Air hoses: use only grounded hoses with a maxi-

mum of 500 feet (150 m) combined hose length to

ensure grounding continuity.

3. Fluid hoses: use only grounded fluid hoses.

4. Air compressor: follow manufacturer’s recom-

mendations.

5. Spray gun or dispensing valve: grounding is

obtained through connection to a properly

grounded fluid hose and pump.

6. Fluid supply container: according to local code.

7. Object being sprayed: according to your local

code.

8. All solvent pails used when flushing,according

to local code. Use only metal pails, which are con-

ductive, placed on a grounded surface. Do not place

the pail on a nonconductive surface, such as paper

or cardboard, which interrupts the grounding continu-

ity.

9. To maintain grounding continuity when flush-

ing or relieving pressure,always hold a metal

part of the dispensing unit firmly to the side of a

grounded metal pail, then trigger the dispensing

unit.

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